CVE-2021-26423

.NET Core and Visual Studio Denial of Service Vulnerability

State
Published
Severity
7.5 High
Published
Aug 12, 2021
Updated
Aug 10, 2026
Reserved
Jan 29, 2021

Read the record on cve.org

Description

.NET Core and Visual Studio Denial of Service Vulnerability

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:Cmicrosoft

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
.NET 5.0Microsoft
  • 5.0.0 to before 5.0.9Affected
.NET Core 2.1Microsoft
  • 2.1 to before 2.1.30Affected
.NET Core 3.1Microsoft
  • 3.1 to before 3.1.18Affected
Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8)Microsoft
  • 15.9.0 to before 15.9.38Affected
Microsoft Visual Studio 2019 version 16.10 (includes 16.0 - 16.9)Microsoft
  • 16.10.0 to before 16.10.5Affected
Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3)Microsoft
  • 16.0 to before 16.4.25Affected
Microsoft Visual Studio 2019 version 16.7 (includes 16.0 – 16.6)Microsoft
  • 16.0.0 to before 16.7.18Affected
Microsoft Visual Studio 2019 version 16.9 (includes 16.0 - 16.8)Microsoft
  • 15.0.0 to before 16.9.10Affected
PowerShell Core 7.0Microsoft
  • 7.0.0 to before 7.0.7Affected
PowerShell Core 7.1Microsoft
  • 7.1.0 to before 7.1.4Affected
Visual Studio 2019 for Mac version 8.10Microsoft
  • 8.1.0 to before 8.10.7Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.